source: (gamesradar.com)

These lists are based on global unique users connected to Xbox Live or in the case of Arcade and Indie Games, full versions purchased during the week.



Xbox 360 Top LIVE Titles (based on UU's):

1 Modern Warfare 2

2 Halo 3

3 Call of Duty: WaW

4 Call of Duty 4

5 GTA IV

6 FIFA 10

7 Left 4 Dead 2

8 Madden NFL 10

9 Gears of War 2

10 Assassin's Creed II



Top Arcade Titles (Full Versions purchased):

1 Worms 2: Armageddon

2 Alien Breed Episode 1

3 Trials HD

4 Castle Crashers

5 Madden NFL Arcade

6 Turtles in Time Re-Shelled

7 A Kingdom for Keflings

8 Shadow Complex

9 Hasbro Family Game Night **

10 Magic: The Gathering